Event between 15VD166 and star GA1080:00429422 with event index number of 1016535
Geocentric closest approach at 2019/12/22 09:19:13 UTC
J2000 position of star is 03:47:52.5 +19:12:07
Equinox of date position of star is 03:48:58.6 +19:15:35
Stellar brightness G=14.2,
use SENSEUP=64
Star is 163 degrees from the moon.
Moon is 17% illuminated.
TNO apparent brightness V=24.7
[RECON map]
TNO is 33.2 AU from the Sun
and 32.3 AU from the Earth.
The TNO is moving 20.1
km/sec on the sky relative to the star, or,
3.1 arcsec/hr.
The 1-sigma error in the time of the event is 529 seconds.
The 1-sigma cross-track error in the shadow position is
5704 km.
The sky-plane scale is
23441.3 km/arcsec.
The TNO has an absolute magnitude Hv=9.4
Diameter=79.8 km assuming a 5% albedo -- 4.0 sec chord
Diameter=32.6 km assuming a 30% albedo -- 1.6 sec chord
Dynamical classification is 2:1E
Star training set for 15VD166, (2019/12/22 09:19UT) Object RA Dec mag sep mel Aldebaran 04:37:04.1 +16:32:52 0.8 11.74 152 44Zet Per 03:55:23.6 +31:56:29 2.8 12.76 154 13 Tau 03:43:28.3 +19:45:46 5.7 1.40 163 PPM 119423 03:53:27.8 +18:58:34 8.5 1.09 162 PPM 119372 03:49:25.0 +19:21:27 9.5 0.13 162 15VD166 03:49:01.7 +19:15:44 14.2 162 Positions are for equinox of date
This table contains the target star visibility for the RECON
network. The observing range has been set to a maximum of
1.7 sigma about the mid-time.
The median site spacing is 23.8 km
RECON observability=1.0 and success probability=6.7%
| Site | Site mid-time (UT) |
Sun alt (deg) |
Sky | Moon | Star alt (deg) |
Star az (deg) |
Target | Observing Time (UT) |
X-track (km) |
| Kelowna | 09:15:52 | -59.3 | Dark | Down | 38.0 | 253.8 | Up | 09:00:52 - 09:30:52 | 6413 |
| Summerland | 09:15:53 | -59.4 | Dark | Down | 38.2 | 253.5 | Up | 09:00:53 - 09:30:53 | 6406 |
| Penticton | 09:15:52 | -59.6 | Dark | Down | 38.2 | 253.9 | Up | 09:00:52 - 09:30:52 | 6376 |
| Okanagan Falls | 09:15:51 | -59.8 | Dark | Down | 38.3 | 254.0 | Up | 09:00:51 - 09:30:51 | 6357 |
| Oliver | 09:15:51 | -59.9 | Dark | Down | 38.3 | 254.2 | Up | 09:00:51 - 09:30:51 | 6342 |
| Anarchist Mountain Observatory | 09:15:50 | -60.0 | Dark | Down | 38.2 | 254.5 | Up | 09:00:50 - 09:30:50 | 6327 |
| Oroville | 09:15:50 | -60.1 | Dark | Down | 38.3 | 254.4 | Up | 09:00:50 - 09:30:50 | 6319 |
| Tonasket | 09:15:49 | -60.2 | Dark | Down | 38.3 | 254.6 | Up | 09:00:49 - 09:30:49 | 6296 |
| Okanogan | 09:15:49 | -60.6 | Dark | Down | 38.5 | 254.7 | Up | 09:00:49 - 09:30:49 | 6261 |
| Brewster | 09:15:49 | -60.9 | Dark | Down | 38.7 | 254.8 | Up | 09:00:49 - 09:30:49 | 6233 |
| Manson/Chelan | 09:15:49 | -61.2 | Dark | Down | 39.0 | 254.6 | Up | 09:00:49 - 09:30:49 | 6209 |
| Entiat | 09:15:49 | -61.4 | Dark | Down | 39.1 | 254.7 | Up | 09:00:49 - 09:30:49 | 6186 |
| Wenatchee | 09:15:49 | -61.6 | Dark | Down | 39.3 | 254.8 | Up | 09:00:49 - 09:30:49 | 6160 |
| Ellensburg | 09:15:48 | -62.0 | Dark | Down | 39.5 | 255.0 | Up | 09:00:48 - 09:30:48 | 6117 |
| Yakima | 09:15:47 | -62.4 | Dark | Down | 39.6 | 255.3 | Up | 09:00:47 - 09:30:47 | 6076 |
| Pasco | 09:15:42 | -62.0 | Dark | Down | 38.8 | 256.8 | Up | 09:00:42 - 09:30:42 | 6056 |
| Toppenish/White Swan | 09:15:46 | -62.4 | Dark | Down | 39.6 | 255.6 | Up | 09:00:46 - 09:30:46 | 6056 |
| PNWRO | 09:15:42 | -62.0 | Dark | Down | 38.7 | 257.1 | Up | 09:00:42 - 09:30:42 | 6033 |
| George/Umatilla | 09:15:42 | -62.3 | Dark | Down | 39.0 | 256.8 | Up | 09:00:42 - 09:30:42 | 6020 |
| Goldendale | 09:15:47 | -63.1 | Dark | Down | 40.0 | 255.7 | Up | 09:00:47 - 09:30:47 | 5996 |
| The Dalles | 09:15:47 | -63.4 | Dark | Down | 40.3 | 255.5 | Up | 09:00:47 - 09:30:47 | 5970 |
| Maupin | 09:15:46 | -63.7 | Dark | Down | 40.3 | 256.0 | Up | 09:00:46 - 09:30:46 | 5929 |
| Madras/Culver | 09:15:44 | -64.1 | Dark | Down | 40.5 | 256.4 | Up | 09:00:44 - 09:30:44 | 5873 |
| Redmond | 09:15:45 | -64.4 | Dark | Down | 40.6 | 256.6 | Up | 09:00:45 - 09:30:45 | 5836 |
| Sisters | 09:15:46 | -64.6 | Dark | Down | 40.9 | 256.3 | Up | 09:00:46 - 09:30:46 | 5835 |
| Bend | 09:15:44 | -64.6 | Dark | Down | 40.8 | 256.7 | Up | 09:00:44 - 09:30:44 | 5813 |
| Oregon Observatory | 09:15:44 | -64.8 | Dark | Down | 40.9 | 256.7 | Up | 09:00:44 - 09:30:44 | 5794 |
| La Pine/Gilchrist | 09:15:44 | -65.0 | Dark | Down | 41.0 | 256.9 | Up | 09:00:44 - 09:30:44 | 5772 |
| North Lake | 09:15:42 | -65.0 | Dark | Down | 40.7 | 257.7 | Up | 09:00:42 - 09:30:42 | 5733 |
| Paisley | 09:15:39 | -65.2 | Dark | Down | 40.5 | 258.5 | Up | 09:00:39 - 09:30:39 | 5680 |
| Chiloquin | 09:15:42 | -66.0 | Dark | Down | 41.5 | 257.5 | Up | 09:00:42 - 09:30:42 | 5654 |
| Lakeview | 09:15:38 | -65.5 | Dark | Down | 40.5 | 259.0 | Up | 09:00:38 - 09:30:38 | 5629 |
| Niwot | 09:14:58 | -56.9 | Dark | Down | 29.4 | 271.1 | Low | 08:59:58 - 09:29:58 | 5629 |
| Klamath Falls | 09:15:42 | -66.2 | Dark | Down | 41.5 | 257.9 | Up | 09:00:42 - 09:30:42 | 5620 |
| SwRI | 09:14:59 | -57.0 | Dark | Down | 29.5 | 271.1 | Low | 08:59:59 - 09:29:59 | 5617 |
| Tulelake | 09:15:41 | -66.3 | Dark | Down | 41.4 | 258.3 | Up | 09:00:41 - 09:30:41 | 5595 |
| Cedarville | 09:15:36 | -65.9 | Dark | Down | 40.5 | 259.7 | Up | 09:00:36 - 09:30:36 | 5563 |
| Fall River/Burney | 09:15:39 | -66.9 | Dark | Down | 41.5 | 259.2 | Up | 09:00:39 - 09:30:39 | 5501 |
| Susanville | 09:15:35 | -66.9 | Dark | Down | 41.0 | 260.3 | Up | 09:00:35 - 09:30:35 | 5442 |
| Gimple | 09:15:35 | -67.2 | Dark | Down | 41.3 | 260.4 | Up | 09:00:35 - 09:30:35 | 5411 |
| Greenville | 09:15:37 | -67.2 | Dark | Down | 41.3 | 260.3 | Up | 09:00:37 - 09:30:37 | 5411 |
| Quincy | 09:15:36 | -67.4 | Dark | Down | 41.3 | 260.5 | Up | 09:00:36 - 09:30:36 | 5389 |
| Portola | 09:15:34 | -67.2 | Dark | Down | 41.0 | 260.9 | Up | 09:00:34 - 09:30:34 | 5381 |
| Reno | 09:15:32 | -67.0 | Dark | Down | 40.6 | 261.6 | Up | 09:00:32 - 09:30:32 | 5360 |
| Carson City | 09:15:31 | -67.2 | Dark | Down | 40.6 | 262.0 | Up | 09:00:31 - 09:30:31 | 5322 |
| Yerington | 09:15:29 | -66.9 | Dark | Down | 40.1 | 262.6 | Up | 09:00:29 - 09:30:29 | 5309 |
| Gardnerville | 09:15:31 | -67.3 | Dark | Down | 40.6 | 262.2 | Up | 09:00:31 - 09:30:31 | 5297 |
| Hawthorne | 09:15:27 | -66.8 | Dark | Down | 39.8 | 263.3 | Up | 09:00:27 - 09:30:27 | 5266 |
| Tonopah | 09:15:22 | -66.2 | Dark | Down | 38.8 | 264.7 | Up | 09:00:22 - 09:30:22 | 5233 |
| Lee Vining | 09:15:27 | -67.5 | Dark | Down | 40.2 | 263.5 | Up | 09:00:27 - 09:30:27 | 5201 |
| Bishop | 09:15:24 | -67.3 | Dark | Down | 39.7 | 264.4 | Up | 09:00:24 - 09:30:24 | 5146 |
| Beatty | 09:15:19 | -66.4 | Dark | Down | 38.5 | 265.9 | Up | 09:00:19 - 09:30:19 | 5117 |
| Indian Springs | 09:15:16 | -65.8 | Dark | Down | 37.7 | 266.8 | Up | 09:00:16 - 09:30:16 | 5096 |
| Lone Pine | 09:15:22 | -67.5 | Dark | Down | 39.6 | 265.3 | Up | 09:00:22 - 09:30:22 | 5069 |
| Henderson | 09:15:13 | -65.6 | Dark | Down | 37.1 | 267.7 | Up | 09:00:13 - 09:30:13 | 5049 |
| Patrick | 09:15:09 | -65.0 | Dark | Down | 36.3 | 268.8 | Up | 09:00:09 - 09:30:09 | 4998 |
| Searchlight/Boulder City | 09:15:12 | -65.8 | Dark | Down | 37.1 | 268.1 | Up | 09:00:12 - 09:30:12 | 4989 |
| DCO | 09:15:07 | -64.6 | Dark | Down | 35.7 | 269.4 | Up | 09:00:07 - 09:30:07 | 4977 |
| Kingman/Dolan Springs | 09:15:09 | -65.2 | Dark | Down | 36.4 | 268.8 | Up | 09:00:09 - 09:30:09 | 4972 |
| Laughlin/Bullhead City | 09:15:11 | -65.6 | Dark | Down | 36.8 | 268.6 | Up | 09:00:11 - 09:30:11 | 4962 |
| Mohave Valley | 09:15:10 | -65.7 | Dark | Down | 36.9 | 268.8 | Up | 09:00:10 - 09:30:10 | 4933 |
| CPSLO | 09:15:28 | -70.0 | Dark | Down | 41.7 | 264.7 | Up | 09:00:28 - 09:30:28 | 4901 |
| Lake Havasu City | 09:15:09 | -65.7 | Dark | Down | 36.7 | 269.2 | Up | 09:00:09 - 09:30:09 | 4894 |
| Parker | 09:15:08 | -65.8 | Dark | Down | 36.6 | 269.5 | Up | 09:00:08 - 09:30:08 | 4857 |
| Blythe | 09:15:08 | -66.2 | Dark | Down | 36.9 | 269.7 | Up | 09:00:08 - 09:30:08 | 4797 |
| Wildwood | 09:15:20 | -69.1 | Dark | Down | 40.2 | 267.0 | Up | 09:00:20 - 09:30:20 | 4795 |
| Idyllwild | 09:15:14 | -67.8 | Dark | Down | 38.6 | 268.4 | Up | 09:00:14 - 09:30:14 | 4780 |
| Calipatria | 09:15:10 | -67.1 | Dark | Down | 37.7 | 269.6 | Up | 09:00:10 - 09:30:10 | 4731 |
| Yuma | 09:15:07 | -66.5 | Dark | Down | 36.9 | 270.4 | Up | 09:00:07 - 09:30:07 | 4697 |
Azimuth is measured in degrees eastward from north. North is at an azimuth of 0, due East is at an azimuth of 90 degrees, due South is 180, and due West is 270.
Do not use the listing below for the RECON CPC 1100 telescopes. This is provided for other non-team facilities.
Star training set for 15VD166, (2019/12/22 09:19UT) Object RA Dec mag sep mel Aldebaran 04:35:55.3 +16:30:30 0.8 11.74 152 44Zet Per 03:54:07.9 +31:53:01 2.8 12.76 154 13 Tau 03:42:18.9 +19:42:01 5.7 1.40 163 PPM 119423 03:52:18.6 +18:55:03 8.5 1.09 162 PPM 119372 03:48:15.7 +19:17:50 9.5 0.13 162 15VD166 03:47:52.5 +19:12:07 14.2 163 Positions are for J2000
Event circumstances last updated at 2019/01/30 20:46:57 UT
Marc W. Buie, Southwest Research Institute